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Finding the Fourth Proportional to 576.46, 795.13 and 355.20

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Solution

The fourth proportional to 576.46, 795.13 and 355.20 is: 489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.46 : 795.13 = 355.20 : x
  2. Step 2: Convert to fraction form
    576.46/795.13 = 355.20/x
  3. Step 3: Cross multiply
    576.46x = 795.13 × 355.20
  4. Step 4: Simplify right side
    576.46x = 282,430.18
  5. Step 5: Solve for x
    x = 282,430.18/576.46
  6. Step 6: Final answer
    x = 489.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.